But then why mobile? Why is it not just a web based app if it's meant to manage a large number of locks? Mobile is not a convenient interface, apart from things that need to be mobile.
eg: using keyfobs = a) regularly lost, b) regularly forgotten, c) small expense every time you give to people, d) never get them back.
If the makers get it to work, I'd be happy for them, but my estimation is that it's going to be dead in a couple of years.
There are numerous problems with the market, that IMHO, Lockitron is attacking (which is not the residential market)
Why wouldn't ever office to lease use this over elaborate and expensive key entry systems?
We really, really don't need mobile phone based key unlock systems. I een considered building one for our home, but diacarded the idea due to the user experience complexity of having to use my phone instead of a simple key (but still carrying a key in case of failure).
As for Airbnb users, all you need is a programmable keypad (or an RFID entry system.)
This is a solved problem.
I would love this to replace my Volvo key. It's as big as the iPhone (kidding - but, it is big)